Maybe there are other ways you can help... like by making little sandwiches for collegians to munch on during the 5 minutes they have in between recruitment parties (Recruitment is a crazy stressful day and I don't remember being able to sit down and have a real meal until it was all over!) I think they would appreciate that gesture. The cool thing about that is you don't hve to spend all day serving ice-waters if they already have plenty of those, but you can still help out the collegians.